Requirement of water in the Human Body & its benefits


Requirement of water in the Human Body & What Are The Benefits Of Drinking Water?



Requirement of water A Human Body is approximately 55% to 75% water. At the time of birth, the body comprises 75% of water, but later when we grow older, this proportion comes down to 60% by the time we are adults. In the case of seniors and older people, this number of water proportion falls to 50%. 

Out of this proportion, one-third of the water is in the blood and between the cells. The remaining two-third part of this water proportion fills the cells in the human body. Also, the Requirement of water in a human body depends on the volume of muscles.

The more the muscles a person has, the more water his body consists of.

Generally, overweight people have a less percentage of water in the comparison of others. That’s because the fat tissues contain a small amount of water. On top of that, men have a higher percentage of water proportion in their bodies in comparison to women.

Some of the organs of the human body require more water than others. Many scientists claim that a human heart and brain consists of at least 73% of water. Also, the human lungs are approximately 83% of water.

The skin and human kidneys are 64% and 79% of water respectively. The body muscles also consist of 79% of water. Even bones are having 31% water in it. 

Health Benefits of Water: 

The human body mainly depends on water for survival. Every tissue, cell and each organ requires water to perform its functions properly. 

Some benefits of Requirement of water in the Human body  :-

  • It helps the body to get rid of wastes through bowel movements and urination. 
  • Water helps the body to keep the temperature at normal.
  • It also protects sensitive tissues in the body.
  • Drink enough water helps in maximizing the physical performance by keeping the body well-hydrated.
  • It improves the energy levels in the body and also stimulates brain functioning.
  • Dehydration can cause mild headaches and migraines. So, drinking enough water can prevent and treat such headaches.
  • It also helps in treating kidney stones by increasing the frequency of urination which passes through the kidneys. Also, it decreases the risk of stone formation in the kidneys.
  • Drinking enough water also helps in reducing body weight.

We all know that majority of the human body consists of water, but still, we don’t drink enough water and catches ourselves being dehydrated from time to time. 

Let’s have a look at some signs and symptoms of dehydration.

Signs and Symptoms of Dehydration: 

There are various indicators of dehydration. Some of them are:

  • Decreased Urination
  • Headache
  • Dry skin or Skin Dryness
  • Dizziness
  • Dark and Strong-smelling urine
  • Increased Thirst
  • Fatigue or Feeling of Sleep
  • Dry mouth, lips, and eyes
  • Rapid Heart Rate
  • Low Blood Pressure
  • Constipation

As a normal standard, the human being urinates 7-10 times a day with at least 5-7 of those times being clear urine. Frequent or regular urination throughout the day is an indication that the body is getting enough water and is well-hydrated. 

Causes of Dehydration:

Now when we know that what is dehydration, what are the signs and symptoms of it, that question arises that what causes it?

Well, some of the main cause of dehydration are:

  • Continuous Vomiting or Diarrhea: Continuous Vomiting or Diarrhea or any type of illness that causes it, can lead to dehydration. This happens because diarrhea expels much water from the human body, which results in the loss of important electrolytes (minerals that are used by the body to control the blood chemistry, muscles, and other organ processes). Generally, these electrolytes are available in the fluids of the body like urine, blood, etc.
  • Excessive Urination:  Human Body removes or releases the toxins through urination. Some health issues or conditions can increase the urine output by causing some chemical imbalances in the system. In many cases, people forget to consume enough of replacement fluids to cover up the excessive urination, which results in dehydration in the body. 
  • Sweating: When the human body becomes hot, the sweat glands get activated and release the moisture from the human body to make it cool. In an attempt to cool it off, the sweat evaporates from the skin, which takes a small amount of heat out of the body. The fluid which comes out of the body through this process of sweating is mainly comprised of salt and water. Due to which excessive sweating can lead to dehydration as the body lose a huge amount of water in this case. Excessive Sweating is technically referred to as Hyperhidrosis. In some cases, it has been noticed as the main cause of dehydration.
  • Fever: If someone is having a high fever, the human body tries to lower the temperature by evaporating, which makes the body to lose fluids in a higher amount through the skin’s surface. If it occurs very often, it can make the body dehydrate, in case if one is not taking proper fluid intake to replenish it.

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Recommended Intake:

The human body needs enough fluids, as it loses it in various body activities like breathing, perspiration, bowel movements, urination, etc.

Now, the question is water required for human body in one day to drink from dehydration?

Many times, we hear our elders saying that you should drink at least 8 glasses of water every day. 

Actually, that’s a reasonable goal and quite easy to remember. However, as per The National Academic of Sciences, Engineering, and Medicines, the recommended daily fluid intake is:

  • For men: 3.7 Litres of fluids (About 15.5 cups)
  • For women: 2.7 Litres of fluids (About 11.5 cups)

This standard intake covers the fluids from water, food, and other beverages. While 20% of this recommendation can be easily covered by food and other fluids. So, 80% of this must be the target to consume other fluids.

Factors which influence water requirements:

There are various factors that differentiate this standard intake from person to person. Some of them are:

  • Environment or Weather: Places with normal or less hot weather, doesn’t make you more sweat in comparison with hot weather places. Generally, people at high altitudes catch up more with the dehydration.
  • Exercise: A person with high-intensity work-out loses more fluids from the body, which requires him to consume more fluids in comparison with a normal person with a sedentary lifestyle.
  • Overall Health Parameters: People with any health condition like fever, diarrhea loses more fluids from the body than a normal healthy person. So, it requires more fluids intake to replenish that to protect the body from dehydration. Conditions like urinary tract stones, bladder infections also make the body to lose more fluids, so one must consume enough water to keep their body hydrated.

Hope this information will give you clarity about the required and recommended intake of water as well as the signs & symptoms and, causes of dehydration. 

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